Some of these libraries - like rayon - are so important, that I feel like they should be part of the default install at this point. It would signal that the re

Some of these libraries - like rayon - are so important, that I feel like they should be part of the default install at this point. It would signal that the release engineers take some responsability of the quality of these libraries (for example making sure that new code is reviewed by a trusted team, backdoors can't get in easily).